Marechal Cunha Machado International Airport

SBSL / SLZ

São Luís, BR

Current TAF Forecast

Raw TAF:
TAF SBSL 171615Z 1718/1818 06015KT 8000 SCT030 FEW035TCU TN26/1808Z TX32/1816Z TEMPO 1718/1722 03012KT 6000 TS BKN020 FEW035CB BECMG 1722/1801 08007KT FEW023 BECMG 1812/1814 09013KT BECMG 1815/1818 06015KT SCT030 FEW035TCU RMK PHN

Detailed TAF Table

Parameter
Sat
23:00Z
+-1h
Sun
00:00Z
+0h
Sun
01:00Z
+1h
Sun
02:00Z
+2h
Sun
03:00Z
+3h
Sun
04:00Z
+4h
Sun
05:00Z
+5h
Sun
06:00Z
+6h
Sun
07:00Z
+7h
Sun
08:00Z
+8h
Sun
09:00Z
+9h
Sun
10:00Z
+10h
Sun
11:00Z
+11h
Sun
12:00Z
+12h
Sun
13:00Z
+13h
Sun
14:00Z
+14h
Sun
15:00Z
+15h
Sun
16:00Z
+16h
Wind Dir
60°
NE
60°
NE
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
80°
E
Wind Speed
15kt
15kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
7kt
Visibility
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
SCT030
FEW035TCU
SCT030
FEW035TCU
FEW023
FEW023
FEW023
FEW023
FEW023
FEW023
FEW023
FEW023
FEW023
FEW023
FEW023
FEW023
FEW023
FEW023
FEW023
FEW023
Ceiling
3500ft ⛈️
TCU Base
3500ft ⛈️
TCU Base
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules MVFR MVFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR VFR
Day/Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 05:55
🌙
Night
🌅 05:55
🌙
Night
🌅 05:55
☀️
Day
🌅 05:55
☀️
Day
🌅 05:55
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 18:04
Flight Rules
VFR: Visual Flight Rules
MVFR: Marginal VFR
IFR: Instrument Flight Rules
LIFR: Low IFR
Ceiling Colors
Red: < 500ft
Amber: 500-1000ft
Blue: 1000-3000ft
Green: > 3000ft
⛈️ TCU: Towering Cumulus
🌩️ CB: Cumulonimbus
+Nh: Hours from now%: Probability of occurrenceAGL: Above Ground Level

Forecast Periods

BASE
MVFR
Wind
60° at 15 kt
Visibility
8 km
Clouds
SCT030 FEW035TCU
📖 Plain English Explanation:

This is the base forecast condition. Winds from the East-Northeast (60°) at 15kt. Visibility will be good at 8 km. Scattered clouds at 3000 feet, Few clouds at 3500 feet. Marginal VFR conditions - some restrictions for visual flying.

TEMPO 2026-02-17 18:00:00 - 2026-02-17 22:00:00
MVFR
Wind
30° at 12 kt
Visibility
6 km
Clouds
BKN020 FEW035CB
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Winds from the North-Northeast (30°) at 12kt. Visibility will be good at 6 km. Broken clouds at 2000 feet, Few clouds at 3500 feet. Marginal VFR conditions - some restrictions for visual flying.

BECMG 2026-02-17 22:00:00 - 2026-01-18 01:00:00
VFR
Wind
80° at 7 kt
Clouds
FEW023
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the East (80°) at 7kt. Few clouds at 2300 feet. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 2026-01-18 12:00:00 - 2026-01-18 14:00:00
VFR
Wind
90° at 13 kt
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the East (90°) at 13kt. Conditions will be suitable for Visual Flight Rules (VFR) operations.

BECMG 2026-01-18 15:00:00 - 2026-01-18 18:00:00
MVFR
Wind
60° at 15 kt
Clouds
SCT030 FEW035TCU
📖 Plain English Explanation:

Conditions will gradually change to become: Winds from the East-Northeast (60°) at 15kt. Scattered clouds at 3000 feet, Few clouds at 3500 feet. Marginal VFR conditions - some restrictions for visual flying.

📚 Understanding TAF Forecasts

Terminal Aerodrome Forecast (TAF) provides detailed weather forecasts specifically for aviation operations. Our system translates complex meteorological codes into plain English to help pilots of all experience levels understand forecasted conditions.

What TAF Includes:

  • • Wind direction, speed, and gusts
  • • Visibility in statute miles or kilometers
  • • Weather phenomena (rain, snow, fog, thunderstorms)
  • • Cloud coverage types and altitudes
  • • Forecast changes with timing
  • • Flight rules categories (VFR/IFR)

Change Indicators Explained:

  • BASE - Main forecast conditions
  • FM - Permanent change from specific time
  • BECMG - Gradual change over 2-4 hours
  • TEMPO - Temporary changes (less than 1 hour)
  • PROB30/40 - 30% or 40% probability

🛩️ Flight Rules Categories

VFR

Visual Flight Rules

  • • Ceiling ≥ 3000 ft
  • • Visibility ≥ 5 miles
  • • Good for visual flying

MVFR

Marginal VFR

  • • Ceiling 1000-3000 ft
  • • Visibility 3-5 miles
  • • Caution for VFR

IFR

Instrument Flight Rules

  • • Ceiling 500-1000 ft
  • • Visibility 1-3 miles
  • • Instruments required

LIFR

Low IFR

  • • Ceiling < 500 ft
  • • Visibility < 1 mile
  • • Challenging conditions

💡 TAF Reading Tips

For Student Pilots:

  • • Focus on the plain English explanations above
  • • Pay attention to flight rules categories
  • • Look for wind direction relative to runway headings
  • • Check for temporary conditions (TEMPO)

For Experienced Pilots:

  • • Cross-reference with raw TAF for precise timing
  • • Consider probability forecasts for alternate planning
  • • Monitor BECMG periods for gradual changes
  • • Always check current METAR vs TAF forecast

Important: TAF forecasts should always be supplemented with current METAR observations, PIREPs, and other weather information for complete situational awareness. Weather can change rapidly, and forecasts have inherent limitations.